a little more advanced redirect

how would you do that?

[muszek]

I let my visitors paste custom URLs to their friends (for example http://example.tld/index.php?name=thomas). "thomas" is a completely random, user inputted string (they fill out a simple for and then they get that URL to copy&paste).

The problem is that I want to show adsense on that page (so it should have an URL that's been visited before) and I need to have that $_GET variable (thomas).
So until now, I had a simple page that would establish a session, write that variable to it and then redirect to some static url:
<meta http-equiv="REFRESH" content="0; URL=some_static_url.htm">.

But I don't think it's 100% fine, because something tells me (not 100% sure), that I'm loosing some PageRank this way (am I right?). If it's not good SEO-wise, what other solution would you suggest? Some javascript redirect?